(19)

(11)

EP 2 422 331 A1

(12)

(43) Date of publication: 29.02.2012 Bulletin 2012/09 (21) Application number: 10714659.9 (22) Date of filing: 15.04.2010

(51) International Patent Classification (IPC):  G08G 1/042(2006.01) G08G 1/065(2006.01) G08G 1/048(2006.01) (86) International application number: PCT/GB2010/000761 (87) International publication number: WO 2010/122284 (28.10.2010 Gazette 2010/43)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 21.04.2009 GB 0906824 (71) Applicant: Clearview Traffic Group Limited Bicester, Oxfordshire OX26 6HR (GB)	(72) Inventor: TEAL, Steven, Richard Brackley, Northamptonshire NN13 6JQ (GB) (74) Representative: McLeish, Nicholas Alistair Maxwell et al Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)